Mantra 1

अथ हैनमृषभोऽभ्युवाद सत्यकाम३ इति भगव इति ह प्रतिशुश्राव प्राप्ताः सोम्य सहस्रं स्मः प्रापय न आचार्यकुलम् ॥ ४.५.१ ॥

In plain words

the bull said to him, "Satyakāma!" "Sir," he answered. "We have come to a thousand, my dear; bring us to the teacher's house.